Troutville, PA 15866 Frost Dates
15866, near Troutville, PA: the frost window
The last spring frost here typically falls around 05/06, about 251 days from today. Fall's first freeze usually shows up around 10/14, roughly 160 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Troutville, not a forecast for this year.
Stretching the season past the first frost
Troutville's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Troutville against the rest of the dataset
About 160 days separate Troutville's last and first frost, putting it 32,522 of 40,283 ZIP codes nationally. Within PA, it ranks 1,727 of 2,088.
Learn more
Two guides worth reading on 15866: zone vs. frost date, on why Zone 6a and Troutville's frost date answer different questions, and the frost range, on how to read the range around Troutville's dates instead of trusting one.